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參數(shù)資料
| 型號(hào)： | MC33591 |
| 廠商： | Motorola, Inc. |
| 英文描述： | PLL Tuned UHF Receiver for Data Transfer Applications |
| 中文描述： | 鎖相環(huán)調(diào)諧UHF接收器的數(shù)據(jù)傳輸應(yīng)用 |
| 文件頁數(shù)： | 5/28頁 |
| 文件大?。?/td> | 699K |
| 代理商： | MC33591 |
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COMMUNICATION PROTOCOL
MOTOROLA
MC33591 Technical Data
5
COMMUNICATION PROTOCOL
MANCHESTER CODING DESCRIPTION
Manchester coding is defined as follows: data is sent during the first half-bit, complementary data is sent
during the second half-bit.
Figure 3: Manchester coding example
The signal average value is constant. This allows clock recovery from the data stream itself. In order to
achieve a correct clock recovery, Manchester coded data must have a duty cycle between:
- 48% and 52% in OOK,
- 45% and 55% in FSK.
PREAMBLE, ID, HEADER WORDS AND MESSAGE DESCRIPTION
The following description applies if the Data Manager is enabled (DME=1).
The ID word is a Manchester coded byte whose content has been previously loaded in the Configuration
Register 2. The complement of the ID word is recognized as an ID word. ID word is sent at the same data rate as
data.
A preamble is required:
- before ID,
- before Header if HE=1,
- before data if HE=0.
It enables:
- in case of OOK modulation, AGC to settle,
- in case of FSK modulation, data slicer reference voltage to settle,
- in any case, clock recovery.
Figure 4 defines the Preamble word in OOK and FSK modulation. Preamble content must be carefully defined in
order not to be decoded as an ID or Header word.
Figure 4: Preamble definition
0
0
0
1
1
1
0
Original data
Manchester coded
OOK Modulation:
‘0’ Manchester
at data rate
‘1’ NRZ > 200μs
i.e.:
2 ‘1’ NRZ at 9.6kBd,
1 ‘1’ NRZ at 4.8kBd
AGC settling time
Clock recovery
ID
FSK Modulation:
Data slicer reference settling time
ID
3 ‘1’ or ‘0’ Manchester
at data rate
‘1’ or ‘0’ Manchester
at data rate
Clock recovery
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC33591FTA | 功能描述:射頻接收器 315 434 MHz RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
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| MC33591FTAER2 | 功能描述:射頻接收器 UHF RECEIVER RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MC33591FTAR2 | 功能描述:IC RF RECEIVER 315,434MHZ 24LQFP RoHS:否 類別:RF/IF 和 RFID >> RF 接收器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS 產(chǎn)品變化通告:Product Discontinuation 09/Jan/2012 標(biāo)準(zhǔn)包裝:50 系列:* 頻率:850MHz ~ 2.175GHz 靈敏度:- 數(shù)據(jù)傳輸率 - 最大:- 調(diào)制或協(xié)議:- 應(yīng)用:* 電流 - 接收:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲(chǔ)容量:- 天線連接器:PCB，表面貼裝 特點(diǎn):- 電源電壓:4.75 V ~ 5.25 V 工作溫度:0°C ~ 85°C 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| MC33591MOD315 | 功能描述:BOARD EVALUATION FOR MC33591 RX RoHS:否 類別:RF/IF 和 RFID >> 過時(shí)/停產(chǎn)零件編號(hào) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:用于 200/300 系列的歐盟開發(fā)套件 適用于相關(guān)產(chǎn)品:Zensys RF 模塊 所含物品:開發(fā)板，模塊，編程器，軟件，線纜，電源 其它名稱:703-1019Q3225667 |
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